Arrears

Arrears are amounts owed on bills that remain unpaid after their due dates.

Also called: Arrearage, Past-due balance, Overdue balance

by Lee Schmidt

Published October 26, 2026

A bill can contain an overdue balance and a new charge with a later deadline. Paying the new charge does not necessarily clear the arrears. You need the unpaid amounts, their original deadlines, and a record of how the biller applies your payments to know what remains overdue.

In a sentence

  • "My electricity bill shows $200 in arrears, separate from $100 in new charges."
  • "We arranged to clear the arrears while keeping up with each new bill."
  • "My wages are paid in arrears after the work period, not paid late."

How it works

  1. Identify the review date. Arrears describe what is overdue on that date, not everything that will eventually need paying.
  2. Check each charge's due date. An unpaid charge with a deadline still ahead is a current obligation, not yet arrears.
  3. Subtract payments and credits applied to the overdue charges. Check the biller's records rather than assuming a payment went toward the oldest bill.
  4. Separate the remaining overdue charges from new charges and separately assessed fees. Keep each amount's deadline visible, because a new charge or fee can later become overdue too.

Arrears at the review date = charges whose due dates have passed − payments and credits applied to those charges

The statement's total balance can therefore be larger than its arrears. A new statement does not, by itself, give an old overdue charge a new payment deadline.

An example

On November 5, you review an electricity statement with two unpaid monthly bills. Assume there are no payments or credits yet, and the statement lists the following amounts.

Statement itemDue dateAmountPosition on November 5
September billSeptember 20$100In arrears
October billOctober 20$100In arrears
November billNovember 20$100New charge, not overdue
Separately assessed feeNovember 20$10Fee, not yet overdue
Total unpaid balanceDifferent deadlines$310$200 in arrears plus $110 not yet due

If the biller applies a $50 payment to the old bills, those arrears fall to $150 and the total unpaid balance falls to $260. The $100 new bill and the illustrative $10 fee remain payable by November 20; paying toward the old balance does not cover those amounts too.

Why it matters

Arrears create a catch-up requirement alongside your ongoing bills. When discussing a payment plan, separate the amount that reduces old arrears from the amount that covers current service. Otherwise, you can make every agreed catch-up payment while building a new overdue balance elsewhere.

The distinction also prevents a misleading budget. Treating the entire statement as this month's new expense hides the older shortfall, while budgeting only the new charge leaves the arrears without a repayment provision. Your cash plan needs room for both, with fees identified separately.

Arrears versus a deferred payment

Arrears are overdue amounts; a deferred payment is a payment the lender or biller agrees to postpone. Missing a deadline on your own is not an agreed deferral. Whether a deferral changes an existing overdue balance or only a future deadline depends on the agreement, so confirm the revised dates, the treatment of old arrears, and any continuing interest or fees in writing.

Common questions

Does “paid in arrears” mean paid late? Not necessarily. The phrase can describe ordinary payment after the work or service period it covers, such as wages paid after you complete a pay period. That payment is late only if it misses the applicable payment deadline; payment after the work period alone does not make it overdue.

Are arrears the same as a late fee? No. Arrears are unpaid amounts past their deadlines, while a late fee is an additional charge. A fee can itself become overdue, so a biller's arrears figure may include it; keep the breakdown visible rather than assuming the whole figure consists of unpaid service charges.

Does a partial payment clear arrears? Only if the amount applied covers all remaining arrears. In the example, applying $50 to $200 of overdue bills leaves $150 overdue. Check the payment allocation and remaining balance on the biller's records.

Does a payment plan mean I am no longer in arrears? Not necessarily. A catch-up schedule can leave an overdue balance outstanding while you repay it. Ask the biller how it treats that balance and whether the arrangement changes fees or other consequences.

Go deeper

Where it shows up in Zypper

For detected recurring bills in spending categories included in the budget, Zypper uses Late when an expected payment has not arrived within its usual window and keeps the unpaid bill counting in the month it was due. Use the biller's statement to confirm the amount actually overdue. See Recurring bills in your budget for how these bills count, or get started with Zypper to track expected bills alongside your spending.