Two people, one renewal date, no assumptions
Insurance renewals go wrong in couples through assumption rather than neglect: each partner believes the other saw the letter. A spreadsheet you share with your partner removes the assumption by giving the renewal date a single, checkable home that both of you can open from anywhere. It also fits how partners actually divide this work — one may hold the vet relationship while the other handles household finance — because the sheet is where those two halves meet: dates and references on one side, treatment and claim context on the other, in rows either person can complete.
Structuring the sheet around policy periods
Give each policy period its own row, and resist overwriting last year's row when the new period starts, because the history of periods is exactly what claim questions reach for. Columns that earn their place: cat's name, period start, renewal date, insurer, policy reference, claims made this period, and a status note for anything unresolved. Keep the renewal date in a real date format the sheet can sort, and apply a simple highlight rule or a manual colour to the row whose renewal is nearest, so opening the file answers the urgent question before any reading begins. A notes column can hold the one line that matters, such as treatment ongoing or exclusion discussed.
The monthly two-minute check you do together
A shared file nobody opens is just a drawer in the cloud, so attach the check to an existing shared moment — a monthly bills review, a food order, a Sunday plan — and open the sheet then. Read the nearest renewal aloud, confirm whose job the renewal actions are this year, and update the status note with anything new from the vet. When a renewal is confirmed, add the new period's row immediately with its renewal date taken from the confirmation, and clear the highlight from the old row. Doing this together, rather than either partner silently editing, keeps trust in the sheet total: both of you know the top row is true.
Claims make the history rows pay off
When a claim arises, the period rows show instantly which policy period a course of treatment falls in, and the claims column builds a per-period record that renewal discussions can draw on. If treatment crosses a renewal boundary, note that plainly across both rows so neither of you later reconstructs it from memory during a stressful call. Record claim references in the row they belong to rather than in a separate messages thread, because the person who did not submit the claim will be the one searching for its reference from a vet waiting room one day. That, more than the renewal date itself, is where the shared sheet earns its keep in a crisis.
Protecting the sheet and backing up what it points to
Check the sharing settings so the file is visible to the two of you and not, through an old link, to the world; renewal data is household data. Keep policy documents themselves in your cat's records rather than pasted into the sheet, with the reference column acting as the index that connects the two. If a renewal is ever missed, add the discovery as a dated note in the status column instead of quietly correcting dates, and contact the insurer the same day — the honest row history is what makes that conversation straightforward rather than speculative.
One sortable table that both partners trust ends the who-saw-the-letter problem for good, and KinsLe Family Sharing is a different tool entirely: relatives you pick get profile access for your cat, separate from the policy rows you both keep.