Everything you need to know about splitting trip expenses fairly.
Getting started
Yes — Splitinerary is completely free. Create an account, add trips, invite travelers, and track expenses with no cost and no credit card required.
Trip managers must have an account to create and edit trips. Other travelers can be added manually by a manager (no account needed to be included in splits), or they can create their own account and join via an invite link to view the expense breakdown themselves.
From the Travelers tab, click "Invite via email." You'll get a shareable link and the option to send a direct email invite. Recipients click the link, create an account if they don't have one, and are automatically added to the trip.
Splitinerary requires an internet connection to save and sync data. We recommend entering expenses as you go when you have connectivity — all data is stored securely in the cloud and accessible from any device.
Travelers & families
An individual counts as one share in all expense calculations. A family or group lets you specify how many members are included — this affects how shared costs are divided. A family of 3 counts as 3 shares by default.
"By member count" (the default) means a family of 3 pays 3× what a solo traveler pays — useful for meals, lodging, and activities where each person has an equal share. "By family unit" means every traveler entity (individual or family) pays the same amount regardless of family size — useful for things like a single museum admission ticket covering the whole family, or a shared car rental.
Yes. When adding a traveler, set their personal start and end dates. Per-day expenses and lodging costs are prorated automatically — they'll only be charged for days and nights they were actually present.
Edit the traveler's leave date at any time from the Travelers tab. All calculations update immediately across the dashboard, cost grid, and settlement plan.
Expenses & splitting
Splitinerary supports four expense types: One-time (split equally on a single day), Per day (prorated across the trip duration), Per person (each traveler pays their own share), and Housing (a special type with check-in/check-out dates and optional nightly rate). Each type handles the math differently to reflect how the cost was actually incurred.
Housing costs are distributed night by night. Each night is divided among travelers who were present — meaning travelers who leave early are only charged for nights they slept at the property. The check-out date (and a traveler's departure date) are never charged since those are departure days with no overnight stay.
Yes. When adding a housing expense, choose "Per night" as the cost mode, enter the nightly rate, and Splitinerary will calculate the total based on your check-in and check-out dates.
When entering an expense, uncheck the travelers who shouldn't share it in the "Split among" section. Only the selected travelers will be charged.
Yes, as long as you're a trip manager. Click the "Edit" or "×" button on any expense in the Expenses tab. Changes take effect immediately across all calculations.
Dashboard & settlements
"Total Spent" is how much a traveler actually paid out of pocket (receipts they fronted). "Total Owed" is their calculated share of all shared expenses. The difference (Net) shows whether they overpaid or underpaid — a positive net means others owe them money.
Splitinerary uses a greedy settlement algorithm that matches the largest creditors with the largest debtors first. In a typical group of 6 people, this usually produces only 3–5 payments instead of up to 15. Families settle as a single unit.
"Summary" shows total Spent and Owed per traveler. "Per expense" shows how each specific expense was split. "Per day" shows how much each traveler was charged on each individual day of the trip — useful for understanding day-to-day cost distribution.
The Cost Grid tab shows a full matrix with expenses as rows and travelers as columns. Each cell shows exactly how much that traveler owes for that expense. Row totals confirm the full expense amount; column totals confirm each traveler's Total Owed. The footer rows also show Total Spent and Net balance.
Account & data
Click "Forgot password?" on the sign-in page. Enter your email address and we'll send a reset link. The link expires after 1 hour for security.
Yes. Splitinerary uses Supabase as its backend, which provides enterprise-grade security including row-level security policies (only you and your invited trip members can see your trip data), encrypted connections, and regular backups.
Deleting a trip permanently removes all associated data including travelers, expenses, and invite records. This action cannot be undone — you'll be asked to confirm before deletion.
Full data export is on our roadmap. Currently you can capture or screenshot the Cost Grid and Dashboard for records.
Still have questions?
We're happy to help. Send us an email and we'll get back to you.