Settling Shared Expenses Without Waiting for Everyone to Pay

Settling up in Eider means recording a payment against a balance. Each pair of people in a nest can settle independently, while the nest keeps a running record of shared expenses.

That matters when people share costs regularly. Paying someone back for groceries doesn't mean the rent, the power bill, and everyone else's expenses need to be settled that day too. You can pay what you owe another person and continue using the same nest. New expenses update the balances as they're added.

A period closes automatically when every pair is square. That can happen after a payment, but closing the period isn't something everyone needs to coordinate. A household can keep its balances running for months, with different people paying each other at different times.

Periods and settling up are part of Eider's free product. There's no minimum waiting time and no deadline to settle by. The person who's owed can send you a nudge, which names the amount and asks you to settle up. Eider itself doesn't ask. If a period stays open a couple of weeks with a balance on it, Eider may say where that balance stands and leave it there.

1. 1
   You pay each otherThrough your bank, a payment app or cash. Eider doesn't transfer money.
2. 2
   You record the paymentOne tap: "I paid", or "They paid" from the other side.
3. 3
   The period closes itselfAutomatically, once every pair is square. Nobody presses anything.

Suppose Alex, Sam, and Jordan share a nest. Alex owes Sam for groceries, and Sam owes Jordan for the power bill. Alex pays Sam and records the payment in Eider. Their balance reaches zero. Sam still owes Jordan, so the period stays open.

The next day, Sam buys something else they share. That expense updates the relevant balances, including a new amount between Alex and Sam. Their earlier payment remains in the record. Settling with someone clears the balance at that point. It doesn't prevent new shared costs from accumulating afterward.

Eider keeps a separate balance for each pair. Three members have three pairs, and four members have six. A payment between two people changes their balance without changing what either owes someone else. This lets each pair settle when it suits them.

Expenses use the nest's standing split unless an individual expense has an override. The running balances reflect those expenses and the payments people record. You don't need to wait until everyone has finished adding expenses before paying someone back.

When you pay, the money moves through your bank, a payment app, or cash. Eider doesn't transfer it. You record what happened against the person involved using "I paid" or "They paid," and the balance updates. There's also a Venmo link.

The person receiving the money can use "I received it" to acknowledge its arrival. That action acknowledges the whole pair in one tap. It records receipt of the payment, without approving or rejecting the expenses behind it.

With two members, there's only one pair. A payment that clears their outstanding balance closes the period automatically. With more members, every pair must reach zero before the period closes. If any pair still has an outstanding balance, the period remains open.

An open period doesn't require attention simply because it's been open a long time. People can keep adding expenses and recording payments. There's no monthly deadline for bringing the whole nest to zero.

Solo nests support settling too. A solo nest lets you track shared expenses without waiting for the other person to join. You name the other member and start adding expenses yourself. You can record settling up using "Settle," and the activity record reads "Marked settled."

When a period closes, its expenses become locked. This keeps the amounts and splits consistent with the balances that were settled. An expense from that period can't later be changed while the period remains closed.

There's a short window for correcting a mistake. The person who recorded the closing payment can reopen the period within 24 hours of that payment. After that, the period stays closed and its expenses remain fixed.

If a payment will clear the last outstanding balance, it's worth checking the record first. Make sure the expenses you want included have been added, any exceptions to the standing split are correct, and the payment amount matches what actually changed hands. That payment will also close the period.

Eider records what happened. It does not decide who was right.

An expense becomes part of the record when someone adds it. It doesn't wait for another member to approve it, and there's no reject button or counter. The same applies to an override of the standing split.

The people sharing expenses decide what belongs in their nest and how they want to divide it. Eider applies those entries to the balances. It doesn't have enough context to decide whether a purchase should have been shared or whether a particular exception was fair.

If an expense is wrong, the people involved can discuss it and correct the entry while the period is open. The balance updates to reflect the change. After closing, editing requires reopening within the 24-hour window.

That leaves room for an ongoing arrangement: add shared costs, correct mistakes, and pay each other as needed. Each pair can settle its own balance while the rest of the nest continues.