To migrate time tracking software without losing billable hours, you run a five-day parallel window where structural data is moved first, active projects are staged, and full cutover happens on a Monday morning. The essential rule is to leave historical paid invoices in your old tool while importing clients, active rates, and unbilled entries into the new system before revoking user seats. This phased sequence lets developers, designers, and project leads log time without interruption while administrators verify financial records.
What to move, what to hold, and what to drop
The single biggest mistake studios make during a transition is attempting a complete, byte-for-byte migration of every historic invoice generated over five years. Old invoices belong in an archive or standard CSV format, not inside the daily workflow of your next platform. Moving legacy closed records adds noise, increases the risk of duplicate billing, and complicates initial data setup.
Instead, audit your account data and separate it into three clear buckets: active operational data, unbilled billable work, and historical archives.
Active operational data
This includes client contact records, active project containers, billable task categories, and default rate structures. Whether you bill per-person or per-task, these baseline configurations must match your existing client contracts. Standardizing task names across projects during this phase eliminates years of administrative drift, such as having three different tasks named Senior Development, Dev, and Engineering.
Unbilled billable hours
Every logged hour that has not yet been placed on an invoice must be carried over accurately. If you migrate mid-month, export unbilled time entries as a flat structured file. Verify the total hours and dollar values against your old system's summary reports before uploading them to the new database.
Historical records
Paid invoices, closed projects from past years, and deactivated user profiles do not need to live inside your active software. Export these as raw CSV files and PDF invoices to store in your primary cloud drive or local archive. If an auditor asks for a 2023 statement, retrieving a PDF from folder storage takes two minutes and saves you from paying ongoing seat costs for departed staff in an old platform.
A structured timeline to migrate time tracking software
Planning the move across a single business week keeps administrative overhead low and gives team members time to adjust without impacting deadlines. The process begins on Wednesday and concludes on Monday morning.
| Day | Primary Task | Responsible Party | System Status |
|---|---|---|---|
| Wednesday | Export active client lists, project structures, and task rates. | Studio Operations | Legacy tool active |
| Thursday | Import core data into the new system; configure rates and permissions. | Studio Operations | Legacy tool active |
| Friday | Export and import all unbilled hours logged up to Friday evening. | Operations & Finance | Parallel tracking window |
| Saturday & Sunday | Reconcile unbilled report balances between old and new systems. | Finance Lead | Data frozen for review |
| Monday | Cut over team timers; lock legacy accounts to read-only access. | All Team Members | New tool active |
Wednesday: Audit and structure export
Begin by running clean exports of active clients and open projects. Take note of specialized pricing arrangements, such as custom hourly billing rates for specific client contracts. If you are considering a Harvest alternative comparison to escape escalating costs, check your account settings for hidden custom rates that might not appear on high-level summaries.
Thursday: Environment setup and rule configuration
Create the project structure in your new platform. Set up user roles, assign workers to their respective projects, and input billable rates. If you utilize automated workflows or software agents alongside human developers, configure access privileges accordingly so non-human hours can be logged to appropriate project budgets.
Friday: Unbilled time transfer
At the end of the day, instruct the team to submit all timesheets. Export every unbilled hour entry logged up to that point. Upload these records to the new platform so open project balances match your legacy system to the cent.
Weekend: Financial reconciliation
Before inviting the whole team into the new system, run an unbilled time report in both platforms. Compare the total hours, billable amounts, and budget consumption metrics. If the numbers match, your data transfer was successful.
Monday: Full team cutover
Send an email or message to the studio announcing that tracking is live in the new platform. Revoke editing permissions in the old system or archive user seats so no one accidentally logs time in the wrong place.
Managing rates, roles, and software agent workloads
Modern studio operations often involve intricate billing structures. A full team migration requires double-checking per-person rates, per-task overrides, and non-human workload tracking.
Per-person versus per-task billing
Ensure that your target platform handles flexible rate overrides. A senior engineer might charge $180 per hour for architecture work but $120 per hour when conducting internal peer reviews. If your software forces a single flat rate per user across every task, client invoices will require manual adjustments every billing cycle.
Handling automated AI agent work
If your studio uses AI agents to write boilerplate code, generate research summaries, or run continuous testing pipelines, tracking those execution costs accurately protects project margins. Some agencies log agent activity as individual task entries, while others bill based on underlying API usage.
For teams using token-based tracking models, pricing catalogs need constant updates. FlatHours updates token pricing daily from a catalog of 2,526 models across 84 providers sourced through MyTokenTracker under CC BY 4.0. Having an accurate price index means you can trace execution expenses directly to client project totals without building custom spreadsheets.
Pricing mechanics and team growth
When migrating platforms, pay attention to how software vendors charge for scale. Some tools charge expanding seat fees or add-on costs for simple administrative actions. For example, Keito lists $19 and $49 per-user monthly tiers, meaning a team of 20 on its middle tier is around $340 a month before add-ons, while an enterprise quote starts around $199 a month.
Legacy tools like Harvest were acquired by Bending Spoons in July 2025, and Harvest's 2026 pricing adds a per-seat fee on top of metered charges for invoices, projects, clients, and tasks. High per-seat pricing acts as an ongoing fee on every person you hire or add to a project board. Under our Team plan at FlatHours, pricing is fixed at $29 per month for unlimited people with flat pricing, which eliminates unexpected seat additions on your monthly bill. You can read our full flat pricing structure to understand how flat rates compare with variable seat models.
The honest friction of software migration
It is important to acknowledge that no software transition is completely free of effort. Even with clean CSV files and clear instructions, a migration requires focused administrative time.
First, reporting metrics across different applications rarely match 1:1 visually. A platform that calculated budget burn using rounded display figures might render project timelines slightly differently than a tool using raw fractional minutes. Your historic visual charts will not look identical, even if the underlying numerical totals are exact.
Second, team habit changes take deliberate reinforcement. For the first two weeks, expect one or two team members to forget where to enter time or omit task tags. Checking timesheets daily during the first week minimizes missing records at month-end invoicing.
Post-cutover verification and safety checklist
Once your team completes their first week on the new platform, perform a brief audit to confirm that operation flows smoothly.
- Verify unbilled balances: Run an unbilled time report and cross-reference it with the final export taken from your old software.
- Test invoice generation: Create a draft invoice for an active client to verify that tax calculation, address details, and payment gateways operate correctly.
- Check permissions: Confirm that contract freelancers only see the specific projects they are assigned to, while studio managers hold full approval visibility.
- Cancel legacy seat licenses: Once you confirm that all data is verified and client payments for the previous month have cleared, downgrade or terminate legacy subscriptions to avoid duplicate charges.
Migrating time tracking software does not require shutting down client work or working through the night. By keeping historical records in flat file backups, staging active project balances over a weekend, and cutting over clean on Monday morning, your studio maintains uninterrupted billing while building a more stable operational foundation.