diff --git a/Libraries/Core/Helpers/ItemHelper.cs b/Libraries/Core/Helpers/ItemHelper.cs
index d4a086dc..947987d1 100644
--- a/Libraries/Core/Helpers/ItemHelper.cs
+++ b/Libraries/Core/Helpers/ItemHelper.cs
@@ -2,6 +2,7 @@ using System.Text.Json.Serialization;
 using SptCommon.Annotations;
 using Core.Models.Eft.Common;
 using Core.Models.Eft.Common.Tables;
+using Core.Models.Eft.ItemEvent;
 using Core.Models.Enums;
 using Core.Models.Utils;
 using Core.Services;
@@ -2013,6 +2014,19 @@ public class ItemHelper(
             }
         }
     }
+
+    public Product GetProductFromItem(Item item)
+    {
+        return new Product
+        {
+            Id = item.Id,
+            Template = item.Template,
+            ParentId = item.ParentId,
+            SlotId = item.SlotId,
+            Location = item.Location,
+            Upd = item.Upd,
+        };
+    }
 }
 
 public class ItemSize
diff --git a/Libraries/Core/Models/Eft/Common/Tables/BotBase.cs b/Libraries/Core/Models/Eft/Common/Tables/BotBase.cs
index 9c3856d1..63604594 100644
--- a/Libraries/Core/Models/Eft/Common/Tables/BotBase.cs
+++ b/Libraries/Core/Models/Eft/Common/Tables/BotBase.cs
@@ -1,4 +1,5 @@
 using System.Text.Json.Serialization;
+using Core.Models.Eft.ItemEvent;
 using Core.Models.Eft.Ragfair;
 using Core.Models.Enums;
 using Core.Utils.Json;
@@ -620,18 +621,6 @@ public record Production // use this instead of productive and scavcase
     public string? RecipeId { get; set; }
 }
 
-public record Product
-{
-    [JsonPropertyName("_id")]
-    public string? Id { get; set; }
-
-    [JsonPropertyName("_tpl")]
-    public string? Template { get; set; }
-
-    [JsonPropertyName("upd")]
-    public Upd? Upd { get; set; }
-}
-
 public record BotHideoutArea
 {
     [JsonPropertyName("type")]
diff --git a/Libraries/Core/Models/Eft/ItemEvent/ItemEventRouterBase.cs b/Libraries/Core/Models/Eft/ItemEvent/ItemEventRouterBase.cs
index b8ff7d7b..30b01a06 100644
--- a/Libraries/Core/Models/Eft/ItemEvent/ItemEventRouterBase.cs
+++ b/Libraries/Core/Models/Eft/ItemEvent/ItemEventRouterBase.cs
@@ -182,7 +182,7 @@ public record Product
     public string? SlotId { get; set; }
 
     [JsonPropertyName("location")]
-    public ItemLocation? Location { get; set; }
+    public object? Location { get; set; }
 
     [JsonPropertyName("upd")]
     public Upd? Upd { get; set; }
diff --git a/Libraries/Core/Services/PaymentService.cs b/Libraries/Core/Services/PaymentService.cs
index a5d83de9..19752254 100644
--- a/Libraries/Core/Services/PaymentService.cs
+++ b/Libraries/Core/Services/PaymentService.cs
@@ -1,14 +1,224 @@
-using SptCommon.Annotations;
+using Core.Helpers;
+using SptCommon.Annotations;
 using Core.Models.Eft.Common;
 using Core.Models.Eft.Common.Tables;
+using Core.Models.Eft.Inventory;
 using Core.Models.Eft.ItemEvent;
 using Core.Models.Eft.Trade;
+using Core.Models.Enums;
+using Core.Models.Spt.Config;
+using Core.Models.Utils;
+using Core.Servers;
+using Core.Utils;
+using Product = Core.Models.Eft.ItemEvent.Product;
 
 namespace Core.Services;
 
 [Injectable(InjectionType.Singleton)]
-public class PaymentService
+public class PaymentService(
+    ISptLogger<PaymentService> _logger,
+    HashUtil _hashUtil,
+    HttpResponseUtil _httpResponseUtil,
+    DatabaseService _databaseService,
+    HandbookHelper _handbookHelper,
+    TraderHelper _traderHelper,
+    ItemHelper _itemHelper,
+    InventoryHelper _inventoryHelper,
+    LocalisationService _localisationService,
+    PaymentHelper _paymentHelper,
+    ConfigServer _configServer
+)
 {
+    protected InventoryConfig _inventoryConfig = _configServer.GetConfig<InventoryConfig>();
+
+    /**
+     * Take money and insert items into return to server request
+     * @param pmcData Pmc profile
+     * @param request Buy item request
+     * @param sessionID Session id
+     * @param output Client response
+     */
+    public void PayMoney(PmcData pmcData, ProcessBuyTradeRequestData request, string sessionID, ItemEventRouterResponse output)
+    {
+        // May need to convert to trader currency
+        var trader = _traderHelper.GetTrader(request.TransactionId, sessionID);
+        var payToTrader = _traderHelper.TraderEnumHasValue(request.TransactionId);
+
+        // Track the amounts of each type of currency involved in the trade.
+         Dictionary<string, double?> currencyAmounts = new Dictionary<string, double?>();
+
+        // Delete barter items and track currencies
+        foreach (var itemRequest in request.SchemeItems) {
+            // Find the corresponding item in the player's inventory.
+            var item = pmcData.Inventory.Items.FirstOrDefault((i) => i.Id == itemRequest.Id);
+            if (item is not null) {
+                if (!_paymentHelper.IsMoneyTpl(item.Template)) {
+                    // If the item is not money, remove it from the inventory.
+                    _inventoryHelper.RemoveItemByCount(
+                        pmcData,
+                        item.Id,
+                        (int)itemRequest.Count,
+                        sessionID,
+                        output
+                    );
+                    itemRequest.Count = 0;
+                } else {
+                    // If the item is money, add its count to the currencyAmounts object.
+                    currencyAmounts.TryAdd(item.Template, (currencyAmounts[item.Template] ?? 0) + itemRequest.Count);
+                }
+            } else {
+                // Used by `SptInsure`
+                // Handle differently, `id` is the money type tpl
+                var currencyTpl = itemRequest.Id;
+                currencyAmounts.TryAdd(currencyTpl, (currencyAmounts[currencyTpl] ?? 0) + itemRequest.Count);
+            }
+        }
+
+        // Track the total amount of all currencies.
+        var totalCurrencyAmount = 0;
+
+        // Loop through each type of currency involved in the trade.
+        foreach (var currencyTpl in currencyAmounts) {
+            var currencyAmount = currencyTpl.Value;
+            totalCurrencyAmount += (int)currencyAmount;
+
+            if (currencyAmount > 0) {
+                // Find money stacks in inventory and remove amount needed + update output object to inform client of changes
+                AddPaymentToOutput(pmcData, currencyTpl.Key, (int)currencyAmount, sessionID, output);
+
+                // If there are warnings, exit early.
+                if (output.Warnings.Count > 0) {
+                    return;
+                }
+
+                if (payToTrader) {
+                    // Convert the amount to the trader's currency and update the sales sum.
+                    var costOfPurchaseInCurrency = _handbookHelper.FromRUB(
+                        _handbookHelper.InRUB(currencyAmount ?? 0, currencyTpl.Key),
+                        _paymentHelper.GetCurrency(trader.Currency)
+                    );
+
+                    // Only update traders
+                    pmcData.TradersInfo[request.TransactionId].SalesSum += costOfPurchaseInCurrency;
+                }
+            }
+        }
+
+        // If no currency-based payment is involved, handle it separately
+        if (totalCurrencyAmount == 0 && payToTrader) {
+            _logger.Debug(_localisationService.GetText("payment-zero_price_no_payment"));
+
+            // Convert the handbook price to the trader's currency and update the sales sum.
+            var costOfPurchaseInCurrency = _handbookHelper.FromRUB(
+                GetTraderItemHandbookPriceRouble(request.ItemId, request.TransactionId) ?? 0,
+                _paymentHelper.GetCurrency(trader.Currency)
+            );
+
+            pmcData.TradersInfo[request.TransactionId].SalesSum += costOfPurchaseInCurrency;
+        }
+
+        if (payToTrader) {
+            _traderHelper.LevelUp(request.TransactionId, pmcData);
+        }
+
+        _logger.Debug("Item(s) taken. Status OK.");
+    }
+
+    private double? GetTraderItemHandbookPriceRouble(string? traderAssortId, string traderId)
+    {
+        var purchasedAssortItem = _traderHelper.GetTraderAssortItemByAssortId(traderId, traderAssortId);
+        if (purchasedAssortItem is null) {
+            return 1;
+        }
+
+        var assortItemPriceRouble = _handbookHelper.GetTemplatePrice(purchasedAssortItem.Template);
+        if (assortItemPriceRouble is null) {
+            _logger.Debug($"No item price found for {purchasedAssortItem.Template} on trader: {traderId} in assort: {traderAssortId}");
+
+            return 1;
+        }
+
+        return assortItemPriceRouble;
+    }
+    
+    public void GiveProfileMoney(PmcData pmcData, double? amountToSend, ProcessSellTradeRequestData request,
+        ItemEventRouterResponse output, string sessionID)
+    {
+        var trader = _traderHelper.GetTrader(request.TransactionId, sessionID);
+        if (trader is null) {
+            _logger.Error($"Unable to add currency to profile as trader: {request.TransactionId} does not exist");
+
+            return;
+        }
+
+        var currencyTpl = _paymentHelper.GetCurrency(trader.Currency);
+        var calcAmount = _handbookHelper.FromRUB(_handbookHelper.InRUB(amountToSend ?? 0, currencyTpl), currencyTpl);
+        var currencyMaxStackSize = _itemHelper.GetItem(currencyTpl).Value.Properties?.StackMaxSize;
+        if (currencyMaxStackSize is null) {
+            _logger.Error($"Unable to add currency: {currencyTpl} to profile as it lacks a _props property");
+
+            return;
+        }
+        var skipSendingMoneyToStash = false;
+
+        foreach (var item in pmcData.Inventory.Items) {
+            // Item is not currency
+            if (item.Template != currencyTpl) {
+                continue;
+            }
+
+            // Item is not in the stash
+            if (!_inventoryHelper.IsItemInStash(pmcData, item)) {
+                continue;
+            }
+
+            // Found currency item
+            if (item.Upd.StackObjectsCount < currencyMaxStackSize) {
+                if (item.Upd.StackObjectsCount + calcAmount > currencyMaxStackSize) {
+                    // calculate difference
+                    calcAmount -= (currencyMaxStackSize - item.Upd.StackObjectsCount) ?? 0;
+                    item.Upd.StackObjectsCount = currencyMaxStackSize;
+                } else {
+                    skipSendingMoneyToStash = true;
+                    item.Upd.StackObjectsCount += calcAmount;
+                }
+
+                // Inform client of change to items StackObjectsCount
+                output.ProfileChanges[sessionID].Items.ChangedItems.Add(_itemHelper.GetProductFromItem(item));
+
+                if (skipSendingMoneyToStash) {
+                    break;
+                }
+            }
+        }
+
+        // Create single currency item with all currency on it
+        Item rootCurrencyReward = new Item {
+            Id = _hashUtil.Generate(),
+            Template = currencyTpl,
+            Upd = new Upd { StackObjectsCount = Math.Round(calcAmount) },
+        };
+
+        // Ensure money is properly split to follow its max stack size limit
+        var rewards = _itemHelper.SplitStackIntoSeparateItems(rootCurrencyReward);
+
+        if (!skipSendingMoneyToStash) {
+            AddItemsDirectRequest addItemToStashRequest = new AddItemsDirectRequest {
+                ItemsWithModsToAdd = rewards,
+                FoundInRaid = false,
+                Callback = null,
+                UseSortingTable = true,
+            };
+            _inventoryHelper.AddItemsToStash(sessionID, addItemToStashRequest, pmcData, output);
+        }
+
+        // Calcualte new total sale sum with trader item sold to
+        var saleSum = pmcData.TradersInfo[request.TransactionId].SalesSum + amountToSend;
+
+        pmcData.TradersInfo[request.TransactionId].SalesSum = saleSum;
+        _traderHelper.LevelUp(request.TransactionId, pmcData);
+    }
+
     /**
      * Remove currency from player stash/inventory and update client object with changes
      * @param pmcData Player profile to find and remove currency from
@@ -20,12 +230,59 @@ public class PaymentService
     public void AddPaymentToOutput(
         PmcData pmcData,
         string currencyTpl,
-        decimal amountToPay,
+        double amountToPay,
         string sessionID,
         ItemEventRouterResponse output
     )
     {
-        throw new NotImplementedException();
+        var moneyItemsInInventory = GetSortedMoneyItemsInInventory(
+            pmcData,
+            currencyTpl,
+            pmcData.Inventory.Stash
+        );
+
+        //Ensure all money items found have a upd
+        foreach (var moneyStack in moneyItemsInInventory) {
+            moneyStack.Upd ??= new Upd { StackObjectsCount = 1 };
+        }
+
+        var amountAvailable = moneyItemsInInventory.Aggregate(0, 
+            (accumulator, item) => (int)(accumulator + item.Upd.StackObjectsCount)
+        );
+
+        // If no money in inventory or amount is not enough we return false
+        if (moneyItemsInInventory.Count <= 0 || amountAvailable < amountToPay) {
+            _logger.Error(
+                _localisationService.GetText("payment-not_enough_money_to_complete_transation", new {
+                amountToPay = amountToPay,
+                amountAvailable = amountAvailable,
+            })
+            );
+            _httpResponseUtil.AppendErrorToOutput(
+                output,
+                _localisationService.GetText("payment-not_enough_money_to_complete_transation_short", amountToPay),
+                BackendErrorCodes.UnknownTradingError
+            );
+
+            return;
+        }
+
+        var leftToPay = amountToPay;
+        foreach (var profileMoneyItem in moneyItemsInInventory) {
+            var itemAmount = profileMoneyItem.Upd.StackObjectsCount;
+            if (leftToPay >= itemAmount) {
+                leftToPay -= itemAmount ?? 0;
+                _inventoryHelper.RemoveItem(pmcData, profileMoneyItem.Id, sessionID, output);
+            } else {
+                profileMoneyItem.Upd.StackObjectsCount -= leftToPay;
+                leftToPay = 0;
+                output.ProfileChanges[sessionID].Items.ChangedItems.Add(_itemHelper.GetProductFromItem(profileMoneyItem));
+            }
+
+            if (leftToPay == 0) {
+                break;
+            }
+        }
     }
 
     /**
@@ -38,7 +295,15 @@ public class PaymentService
      */
     protected List<Item> GetSortedMoneyItemsInInventory(PmcData pmcData, string currencyTpl, string playerStashId)
     {
-        throw new NotImplementedException();
+        var moneyItemsInInventory = _itemHelper.FindBarterItems("tpl", pmcData.Inventory.Items, currencyTpl);
+        if (moneyItemsInInventory.Count == 0) {
+            _logger.Debug($"No {currencyTpl} money items found in inventory");
+        }
+
+        // Prioritise items in stash to top of array
+        moneyItemsInInventory.Sort((a, b) => PrioritiseStashSort(a, b, pmcData.Inventory.Items, playerStashId));
+
+        return moneyItemsInInventory;
     }
 
     /**
@@ -52,7 +317,59 @@ public class PaymentService
      */
     protected int PrioritiseStashSort(Item a, Item b, List<Item> inventoryItems, string playerStashId)
     {
-        throw new NotImplementedException();
+        // a in root of stash, prioritise
+        if (a.ParentId == playerStashId && b.ParentId != playerStashId) {
+            return -1;
+        }
+
+        // b in root stash, prioritise
+        if (a.ParentId != playerStashId && b.ParentId == playerStashId) {
+            return 1;
+        }
+
+        // both in containers
+        if (a.SlotId == "main" && b.SlotId == "main") {
+            // Both items are in containers
+            var aInStash = this.IsInStash(a.ParentId, inventoryItems, playerStashId);
+            var bInStash = this.IsInStash(b.ParentId, inventoryItems, playerStashId);
+
+            // a in stash in container, prioritise
+            if (aInStash && !bInStash) {
+                return -1;
+            }
+
+            // b in stash in container, prioritise
+            if (!aInStash && bInStash) {
+                return 1;
+            }
+
+            // Both in stash in containers
+            if (aInStash && bInStash) {
+                // Containers where taking money from would inconvinence player
+                var deprioritisedContainers = _inventoryConfig.DeprioritisedMoneyContainers;
+                var aImmediateParent = inventoryItems.FirstOrDefault((item) => item.Id == a.ParentId);
+                var bImmediateParent = inventoryItems.FirstOrDefault((item) => item.Id == b.ParentId);
+
+                // A is not a deprioritised container, B is
+                if (
+                    !deprioritisedContainers.Contains(aImmediateParent.Template) &&
+                    deprioritisedContainers.Contains(bImmediateParent.Template)
+                ) {
+                    return -1;
+                }
+
+                // B is not a deprioritised container, A is
+                if (
+                    deprioritisedContainers.Contains(aImmediateParent.Template) &&
+                    !deprioritisedContainers.Contains(bImmediateParent.Template)
+                ) {
+                    return 1;
+                }
+            }
+        }
+
+        // they match
+        return 0;
     }
 
     /**
@@ -64,23 +381,20 @@ public class PaymentService
      */
     protected bool IsInStash(string itemId, List<Item> inventoryItems, string playerStashId)
     {
-        throw new NotImplementedException();
-    }
+        var itemParent = inventoryItems.FirstOrDefault((item) => item.Id == itemId);
 
-    /**
-     * Take money and insert items into return to server request
-     * @param pmcData Pmc profile
-     * @param request Buy item request
-     * @param sessionID Session id
-     * @param output Client response
-     */
-    public void PayMoney(PmcData pmcData, ProcessBuyTradeRequestData request, string sessionID, ItemEventRouterResponse output)
-    {
-        throw new NotImplementedException();
-    }
+        if (itemParent is not null) {
+            if (itemParent.SlotId == "hideout") {
+                return true;
+            }
 
-    public void GiveProfileMoney(PmcData profileToReceiveMoney, double? sellRequestPrice, ProcessSellTradeRequestData sellRequest, ItemEventRouterResponse output, string sessionId)
-    {
-        throw new NotImplementedException();
+            if (itemParent.Id == playerStashId) {
+                return true;
+            }
+
+            return IsInStash(itemParent.ParentId, inventoryItems, playerStashId);
+        }
+
+        return false;
     }
 }