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newSchoolWorks.com › VoTechWorks › Business & Cross-Cutting › Bookkeeping / Office Administration › Accounts Receivable and Accounts Payable › Lesson 3
BUS-BOOK55-04 · Lesson 3 · 12 clock hours · practice

Cash Receipts and Applying Payments to Open Invoices

Objective. Students record customer payments by check, EFT, and credit card, apply each payment to the correct open invoice in QuickBooks, and make the corresponding deposit entry.

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Cash Receipts and Applying Payments to Open Invoices

When a customer pays what they owe, two things must happen in your books: the payment must be recorded against the correct open invoice, and the cash must eventually land in the right bank account. Skipping or reversing these steps produces a misstated Accounts Receivable (AR) balance, overstated income, and a bank reconciliation that will never balance. This lesson walks through every payment type you will encounter—paper check, ACH/EFT, and credit card—and shows how QuickBooks handles each one.

How QuickBooks Routes Incoming Money

When you use the Receive Payments window (Customers menu → Receive Payments), QuickBooks does not immediately add the money to your bank account. Instead, it places the funds in a holding account called Undeposited Funds. Think of Undeposited Funds as a lockbox on your desk: the money is collected and safe, but it has not yet been deposited at the bank. The account clears to zero only after you run Make Deposits and select those funds to move them to the correct bank account. This two-step process is intentional—it lets you group multiple customer payments into a single deposit entry that matches the one lump sum your bank will show on the statement, making reconciliation straightforward.

Recording a Check Payment

1. Open Receive Payments and select the correct customer from the drop-down.

2. Enter the check amount, date, check number, and choose Check as the payment method.

3. In the open-invoice list at the bottom of the window, click the checkbox next to the invoice the payment covers. QuickBooks applies the amount automatically. If the check exactly matches the invoice, the balance due drops to zero.

4. If there is a small underpayment or overpayment, QuickBooks prompts you to write off the difference, leave it as a credit, or keep it as an underpayment. Choose the option that matches your remittance advice.

5. Save and close. The invoice now shows as Paid.

Recording an ACH or EFT Payment

ACH (Automated Clearing House) and EFT (Electronic Funds Transfer) payments arrive electronically. The recording steps in Receive Payments are identical to a check except you select E-Check or EFT as the payment method and enter the transaction or trace number in the reference field instead of a check number. Because these payments clear the bank quickly—often the same or next business day—pay attention to the date you enter; it must match the date the bank receives the funds, not the date the customer initiated the transfer.

Recording a Credit Card Payment

Select Credit Card as the payment method. If your company processes cards through QuickBooks Payments, authorization and posting happen inside QuickBooks. If you process through a separate terminal, record the authorization code in the reference field. Credit card deposits may net a merchant processing fee before they reach your bank account; your instructor will show you how your practice company handles that variance.

Matching Remittance Advice to Open Invoices

A remittance advice is the document (paper or electronic) the customer sends alongside their payment. It lists which invoice numbers and line items they are paying. Always match the remittance advice to invoices before clicking anything in QuickBooks. Common errors include:

If the remittance is missing or unclear, flag it for your supervisor before posting. Posting an incorrect application creates a phantom open balance and incorrect AR aging.

Making the Deposit

After all payments in a batch are entered, go to Banking menu → Make Deposits. QuickBooks displays the Payments to Deposit window listing every item sitting in Undeposited Funds. Select the payments that match the physical deposit slip you are taking to the bank (or the batch your merchant processor will settle). Click OK, confirm the bank account and date, and save. The deposit entry credits Undeposited Funds and debits your bank account. After all selected payments are deposited, Undeposited Funds should return to $0.

Confirming Your Work

Run Reports → Customers & Receivables → Customer Balance Detail. This report shows every customer's open invoices and remaining balances. If all eight payments were applied correctly, each invoice in your batch should show a zero balance due and a Paid status. If any invoice still shows a balance, re-open Receive Payments, locate that customer, and check whether the payment was applied to the wrong line.

Accuracy and Data-Security Reminders

Bookkeeping errors in AR can trigger cash-flow problems, incorrect financial statements, and audit findings. Treat remittance-advice packets as sensitive documents—they contain customer account information. Shred paper remittances according to your office's document-retention policy rather than placing them in open recycling bins. When working in a shared QuickBooks environment, log in under your own user name only; never share credentials. These are the office-administration equivalents of safety practices: protecting data integrity and customer confidentiality is a professional obligation in this trade.

Key terms8

Accounts Receivable (AR)The asset account that records money customers owe to the business for goods or services already delivered and invoiced.
Undeposited FundsA QuickBooks holding account where customer payments are staged after Receive Payments is used but before a deposit is posted to the bank account.
Receive PaymentsThe QuickBooks transaction window used to record a customer payment and apply it to one or more open invoices.
Make DepositsThe QuickBooks function that moves funds from Undeposited Funds to a specific bank account and creates the corresponding deposit transaction.
Remittance AdviceA document sent by a customer with their payment that identifies which invoice numbers and amounts are being paid.
ACH / EFTElectronic payment methods (Automated Clearing House / Electronic Funds Transfer) that move money between bank accounts without paper checks.
Customer Balance Detail ReportA QuickBooks report that lists each customer's invoices, payments applied, and remaining open balances, used to confirm all invoices are paid.
Open InvoiceAn invoice that has been sent to a customer but has not yet been fully paid; it carries a remaining balance due in the AR account.

Worked examples4

1. Customer A sends a check for $1,250.00 to pay Invoice #1042 for $1,250.00. Record the payment and show the effect on AR and Undeposited Funds.
  1. Open Receive Payments; select Customer A.
  2. Enter date, amount $1,250.00, payment method Check, check number from remittance.
  3. Check the box next to Invoice #1042 ($1,250.00). QuickBooks applies the full amount; balance due = $0.
  4. Save. QuickBooks posts: Debit Undeposited Funds $1,250.00 / Credit Accounts Receivable $1,250.00.
  5. Later, open Make Deposits, select this payment, confirm bank account. QuickBooks posts: Debit Bank $1,250.00 / Credit Undeposited Funds $1,250.00.
Answer: AR decreases by $1,250.00, Undeposited Funds nets to $0 after deposit, and the bank account increases by $1,250.00. Invoice #1042 shows Paid.
2. Customer B sends an ACH payment of $3,400.00 to cover Invoice #1055 ($2,000.00) and Invoice #1061 ($1,400.00). Apply the payment correctly.
  1. Open Receive Payments; select Customer B.
  2. Enter date, amount $3,400.00, payment method E-Check/EFT, trace number from remittance.
  3. Check the box next to Invoice #1055. QuickBooks applies $2,000.00; remaining unapplied = $3,400.00 − $2,000.00 = $1,400.00.
  4. Check the box next to Invoice #1061. QuickBooks applies $1,400.00; remaining unapplied = $0.
  5. Both invoices show balance due = $0. Save. Debit Undeposited Funds $3,400.00 / Credit AR $3,400.00.
  6. Include in next Make Deposits run to clear Undeposited Funds.
Answer: Both invoices are paid in full. AR decreases by $3,400.00 total. Undeposited Funds holds $3,400.00 until the deposit is posted.
3. A batch deposit contains three payments: Check $1,250.00, ACH $3,400.00, and a credit card payment of $875.00. What is the total deposit amount, and what will the bank account debit be?
  1. List all payments staged in Undeposited Funds: $1,250.00 + $3,400.00 + $875.00.
  2. Add: $1,250.00 + $3,400.00 = $4,650.00.
  3. $4,650.00 + $875.00 = $5,525.00.
  4. In Make Deposits, select all three items. Total deposit = $5,525.00.
  5. QuickBooks posts: Debit Bank $5,525.00 / Credit Undeposited Funds $5,525.00.
Answer: The deposit total is $5,525.00. The bank account is debited $5,525.00, and Undeposited Funds is credited $5,525.00, returning its balance to $0.
4. Customer C's remittance shows a payment of $500.00 for Invoice #1070, which has a balance due of $512.00. The $12.00 difference is a short payment the company will write off. What is the journal effect after applying the payment and writing off the difference?
  1. Open Receive Payments; select Customer C.
  2. Enter $500.00, payment method Check.
  3. Check Invoice #1070. QuickBooks applies $500.00 and flags a $12.00 underpayment.
  4. Choose 'Write Off the Extra Amount.' QuickBooks credits AR for $12.00 using the designated write-off account (e.g., Bad Debt Expense or a discount account).
  5. Net effect: Debit Undeposited Funds $500.00, Debit Write-Off Expense $12.00, Credit AR $512.00.
  6. Invoice #1070 balance due = $512.00 − $500.00 − $12.00 = $0. Invoice shows Paid.
Answer: AR is reduced by the full $512.00. The bank will receive $500.00. The $12.00 write-off is expensed. Invoice #1070 is closed.
In class: Worked example on projector: instructor processes a check payment in QuickBooks Receive Payments window, explains the Undeposited Funds account, and walks through Make Deposits to move funds to the bank account · Students process a batch of eight mixed-payment remittances (checks, ACH, credit card) against open invoices in a practice QuickBooks company file, matching remittance advice to correct invoices · Students record the batch deposit and reconcile the Undeposited Funds balance to zero, then run a Customer Balance Detail report to confirm all invoices show as closed
Materials: QuickBooks lab file with open invoices, printed remittance-advice batch packet, QuickBooks Certified User courseware (Banking/Customers chapter)
Check: Instructor checks QuickBooks Undeposited Funds balance (must = $0) and Customer Balance Detail report for each student; pass = all eight payments applied correctly with matching deposit total

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

QuickBooks Certified User – Banking/Customers
1. What is the primary purpose of the Undeposited Funds account in QuickBooks?
QuickBooks Certified User – Banking/Customers
2. A bookkeeper records a customer check in Receive Payments but forgets to run Make Deposits. Which of the following best describes the resulting error?
QuickBooks Certified User – Banking/Customers
3. When entering an ACH payment in QuickBooks Receive Payments, what should you record in the reference number field instead of a check number?
AIPB Certified Bookkeeper – Accounts Receivable
4. After applying all eight payments from a remittance batch, a student's Customer Balance Detail report shows that Invoice #2034 still has an open balance of $750.00. What is the most likely cause?
QuickBooks Certified User – Reports
5. Which report should you run in QuickBooks to confirm that all invoices in your payment batch have been closed after recording the receipts and deposit?
AIPB Certified Bookkeeper – Accounts Receivable
6. A customer's remittance advice lists Invoice #3010 ($1,100.00) and Invoice #3015 ($650.00). The check total is $1,750.00. After applying the payment in QuickBooks, what should the combined remaining balance on these two invoices be?
Microsoft Office Specialist – Office Administration / Professional Practice
7. From a data-security standpoint, which practice is most appropriate when handling paper remittance-advice documents after they have been posted?
AIPB Certified Bookkeeper – Accounts Receivable
8. A bookkeeper is about to post a $900.00 check payment but cannot identify which of three open invoices the customer intended to pay because no remittance advice was included. What is the correct course of action?
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