Money Tools for Shared Expenses, IOUs, and Repayments

Split Expense Calculator

Use this when you need to divide one bill, add who paid, and see who owes whom.

Need to choose the method first? See how to split fairly when orders differ.

If you already paid first and people will repay later, use the Group Payback Calculator after finding the original share.

Group Payback Calculator

Calculate each person’s share, subtract what they already paid back, and see who is paid, partly paid, or still open.

Best when you paid first for a group gift, tickets, dinner, deposit, booking, or shared purchase and paybacks are still open.

If the status is clear but the message feels awkward, read how to remind a group to pay you back without spamming everyone.

Couple Expense Split Method Calculator

Compare 50/50, income-proportional, equal-leftover, and custom contributions before choosing a rule for shared monthly costs.

Couple Shared Expense Balance Calculator

Add shared expenses, choose a 50/50, custom, income-based, or category split, include transfers, and see who covered more than their share.

Best when partners share groceries, rent, utilities, subscriptions, trips, or household costs and want a calm settle-up or carry-forward balance.

If the real question is whether the extra spending should be ignored, split, reimbursed, or carried forward, read what to do when you pay more than your partner first.

Running Balance Calculator

Add expenses and repayments over time to see the current balance between two people.

Best for ongoing shared expenses, partial repayments, and old balances that keep changing.

Not sure what a running balance means? Read the plain-English guide before using the calculator.

Still choosing between a calculator, spreadsheet, split app, or dedicated IOU tracker? Compare the best ways to track IOUs between people.

If the choice is specifically shared expense app vs running balance app, read the dedicated comparison.

Payment Plan Calculator

Calculate weekly, biweekly, or monthly repayment steps for money owed between people.

Best when someone cannot repay everything at once and both people need a clear plan.

Need wording for the message? Read the repayment update guide.

Partial Repayment Calculator

Subtract one or more partial repayments from one known amount and see what is still open.

Best when someone has already paid part of what they owe and you need the remaining balance before sending an update, receipt, or repayment plan.

Temporary Financial Support Record Template

Create a simple written record for help between people: what was covered, what should happen next, when to check in, and what to do if timing changes.

Best after support has been agreed and before repayments, reminders, or updates start.

Not sure which support type to choose? Clarify whether the money was a gift or something to repay before you finalize the record.

If you have not asked yet and the person is a friend, start with how to ask to borrow money from a friend so the request is clear before you create the record.

If you are still deciding whether or how to help someone, read the helper-side guide first so gift, repayment, and check-in expectations are clear before the record is created.

If active support now needs to end, taper, or transfer, plan how ongoing support will change before updating the record.

Roommate Bill Split Calculator

Split rent, utilities, groceries, household supplies, repayments, and previous balances into one monthly roommate settle-up, with optional fixed and usage-based portions, days present, temporary occupants, and agreed usage weights.

Best when several household costs happened this month and you need to know who owes whom.

Need to decide what should be split equally first? Read the guide to splitting rent, utilities, and groceries with roommates.

Need a tracking method before calculating? Read the roommate money tracking guide.

Polite Payback Reminder Generator

Choose the relationship, tone, situation, amount, and context to generate a repayment reminder that fits the moment.

Best when you know the balance but do not know exactly what to say.

Reminding several people after one group cost? Start with the group reminder workflow so you know when to use the group chat and when to follow up individually.

If someone already sent part of the money, read the partial repayment follow-up guide before generating the final message.

Repayment Reminder Text Examples

Browse copyable friendly, polite, firm, family, roommate, partner, partial-repayment, and repayment-update messages.

Best when you want to quickly copy a proven template and adjust it yourself.

Need borrower-side wording first? Read Ask family for temporary financial help.

Repayment Receipt Generator

Create a simple confirmation for money paid back — what was received, what it covered, and whether anything is still open.

Best when someone already sent money and you want a clear written record without making the conversation feel formal.

Family Reimbursement Tracker Template

Download an Excel, CSV, or printable PDF template for tracking money paid for parents, siblings, relatives, recurring family bills, purchases, repayments, and remaining balances.

Best when you pay for family costs over time and need a simple record before switching to an app.

Need the workflow for subscriptions, phone plans, utilities, and other charges that repeat? Read how to track subscriptions and bills you pay for family.

If your main record is for parent bills, subscriptions, pharmacy purchases, groceries, sibling reimbursements, or recurring charges, use the Elderly Parent Expense Tracker for the ongoing app workflow.