Concept · Consumer app and checkout

Affirm Budget Fit

Every plan at checkout shows its own payment schedule, but none show what the rest of the customer's month already looks like. This concept lets a customer set a monthly budget once and carries it into plan selection, so they can buy with confidence in what they can afford.

  1. 1 · Set a budget
  2. 2 · Check out

Reasoning

The problem

Affirm's checkout shows each plan's payment, term, interest and total, but nothing about the rest of the customer's month. People choose a plan without seeing what they already owe, unless they leave checkout to look it up in the app.

A budget lets them see where their monthly payments stand before they choose. Affirm charges no late fees, so a missed payment is a straight loss, and often a customer who doesn't return.

The idea

The customer sets a monthly budget and the app fills in existing plans. At checkout, each plan shows whether it keeps the next twelve months within that budget.

No plan is marked best. A longer plan costs more interest, and if it keeps next month's groceries covered, that can be the right choice. The customer makes it.

The metric

On-time rate for the first three payments, customers with a budget versus without.

Also watch checkout conversion, for any downside from adding information at checkout, and repeat purchases, to see whether the budget helps people feel confident making future purchases.

What I verified

  • Plan selection shows monthly payment, term, maximum interest and total, per Affirm's merchant guide.
  • Pay in 4 is four interest-free payments every two weeks. Monthly plans run 0–36% APR in the US and 0–31.99% in Canada. The mock uses Affirm's 15% sample.
  • Loans live under Manage, and I found no budget tool in Affirm's public materials.

What I couldn't

  • The logged-in app and current checkout layout. The mock follows Affirm's documented content, and the tab bar comes from a merchant guide.
  • Repayment data for customers with several plans running.

What I'd do first

Check whether missed payments cluster in months where a new plan stacks on existing ones. If they don't, this is aimed at the wrong moment.

Risks and how I'd test them

  1. Red could lower checkout conversion.Seeing a plan go over budget may lead some people not to buy. That costs a sale, but it fits Affirm's promise of no surprises. Nothing is blocked, so measure conversion and repayment together.
  2. People set the budget they wish they had.The budget starts at a suggested number based on the last six months of payments, and the customer adjusts from there. Compare budgets set against actual on-time payments.
  3. People may not trust what the budget is used for.The mock says it stays out of purchasing power and isn't shared with creditors, but some people will still be wary of handing it over. Track how many set a budget and keep it.