How to Log Expenses With a Siri Shortcut on iPhone

Almost everyone who abandons expense tracking abandons it in the same place. Bank-linked accounts keep working fine, because they need no effort at all. What breaks is the other half: cash, the split bill you covered, the card you deliberately track by hand. Each one requires finding your phone, opening an app, waiting for a dashboard to load, and typing a number you are already starting to misremember. That is perhaps twenty seconds of friction against a two second purchase, and it is enough that most people simply stop.

A Siri Shortcut attacks the friction rather than the discipline. Instead of asking you to be more diligent, it removes the app from the loop entirely.

What is a Siri Shortcut, and why use one for expenses?

A Shortcut is an action an app publishes to iOS so the system can run it without opening the app. Apple's modern version, App Intents, lets a developer declare an action, its parameters, and the phrases that trigger it. iOS then surfaces that action in the Shortcuts app, in Spotlight, on the Action button, under Back Tap, and to Siri.

Expense logging fits this model unusually well. The task is tiny, it has to happen at a specific moment, and every second of delay reduces the chance it happens at all. An action that runs in the background and answers with a spoken confirmation turns a two minute chore into something you finish while putting your wallet away.

The catch is that a shortcut can only capture what you can say quickly. Amount and merchant, yes. A considered category decision, no. Good expense shortcuts accept that limit rather than fighting it, which is why the question of when to automate transaction categorization matters more than it first appears.

What do you need before the first run?

Two things, and both are one-time.

1. Open the app and sign in once on that device. The action runs against your session and reads your account list from the app. Until it has launched once, iOS has nothing to authorize and Siri will tell you the app has not been opened yet.
2. Create at least one manual account. This is where the expense goes. Without one, the action returns an error instead of silently inventing a destination.

That is the whole setup. There is no shortcut to build, no automation to configure, and nothing to download from a shared link. Because the action ships inside the app as an App Intent, it appears in Shortcuts and in Siri on its own.

How do you set up the Add Transaction shortcut?

Open the Shortcuts app, find Nethaven in the app list, and select Add Transaction. The action exposes four fields, only the first of which is required:

• Amount. Required, and it carries its own currency rather than assuming one.
• Merchant Name. Optional. Free text, so dictation quality varies.
• Account. Optional, and a live dropdown of your manual accounts pulled from your workspace. Pick from the list rather than typing, so the name always matches.
• Notes. Optional. Useful for the context you will not remember next week, such as which friend you covered.

Run it once from the Shortcuts app to confirm it works. From then on you can trigger it however you prefer: by voice, from a Home Screen icon, from the Action button on a Pro handset, or with a Back Tap. The step-by-step version with screenshots lives in the Add Transaction help article.

What can you actually say to Siri?

App Intents register several phrasings, so you are not memorizing one exact incantation. All of these reach the same action:

• "Add a transaction in NetHaven"
• "Log an expense in NetHaven"
• "Add a payment in NetHaven"
• "Record a purchase in NetHaven"

Siri asks for the amount, then confirms with a line like "Added Tesco to Uncategorized". That confirmation is doing real work. It tells you the request reached the server rather than failing quietly, which is the failure mode that erodes trust in any background automation.

Where does the expense actually end up?

Three things are decided for you, and it is worth knowing all three before you rely on the shortcut.

It is always an expense, recorded against your main budget. Income and transfers are not something you can create by voice, which is a deliberate limit rather than an oversight: the ambiguous cases are exactly the ones you should not be resolving one-handed in a queue.

It goes to the manual account you picked. If you name an account that does not exist, the action reports the error rather than guessing, so a typo cannot quietly send a month of coffees to the wrong place.

It lands in Uncategorized, a category created automatically the first time it is needed. No merchant matching, no guessing from the name. This is the design decision people question most and it is the right one: a category assigned from a garbled dictated merchant name is worse than no category, because a wrong category looks finished and never gets reviewed. Nethaven's budgeting and transaction rules then handle the sorting once you have seen a merchant enough times to know where it belongs.

Can Apple Pay purchases log themselves?

Partly, and it is the most powerful version of this setup. iOS can trigger an automation when you pay with a specific card in Wallet. Point that trigger at the Add Transaction action, turn on Run Immediately so it does not ask for confirmation, and map the amount and merchant from the trigger onto the action's fields. Tapping to pay then logs the purchase with no interaction at all.

Two honest caveats. Apple has relocated this setting several times across iOS releases and not every card supports transaction automations, so the menu may not be where a guide says it is or may not exist for your card. And this is strictly for a card you track as a manual account. Pointing it at a bank-linked card produces two records of every purchase: one from the automation, one from the sync. Cleaning that up costs more than the automation ever saved.

Where voice logging fits in a monthly routine

Treat the shortcut as capture, not as bookkeeping. Its only job is getting the amount recorded before you forget it. The sorting happens later, in one pass, when you have a screen and both hands.

In practice that means a queue of Uncategorized transactions waiting at your next review. That queue is a feature. It is a visible, finite list of decisions, which is far easier to work through than trying to remember what a merchant was three weeks after the fact. Rules gradually shrink it as recurring merchants become predictable, though only for the merchants that genuinely belong in one category every time, which is the distinction behind most transaction rules that fail.

Nethaven publishes two other shortcuts alongside this one. Monthly Expense Left answers how much room is left in the budget this month without opening anything, and Scan Receipt jumps straight to the scanner when a paper receipt is easier than dictating. Together they cover the three moments when tracking normally breaks: before you spend, as you spend, and when there is a receipt in your hand. All three live under Siri Shortcuts and automation.