Passport Disposal

Other than nostalgia, no, no great reason to keep them. Seems an expired ID gets you nowhere these days.

You can shred them if you wish, some places have secure disposal (that goes to a shredder), or toss them in the trash. There really is no confidential information on a passport, but many feel better to be safe.

Actually, I am very glad that I kept all my old passports.
In Canada, if you are a citizen but haven’t lived here all your working life, passports with all the entry and exit stamps are a way of proving where you were at certain times of your life.
I needed to send in my old passports in order to prove where I was over the years to apply for certain pensions.
Then the government can decide your pension amounts based on how long you worked in Canada.
If I hadn’t kept the passports, I had no other proof of times spent working overseas.
I would say never throw away an official document in case you need it forty years later!

In Canada, if you are a citizen but haven’t lived here all your working life, passports with all the entry and exit stamps are a way of proving where you were at certain times of your life.

I have lived for 10 years in The Netherlands and because of that am due some pension from there as well. So I just went to the local Dutch embassy, and got register as an overseas former resident, and form that moment I could log in to a website where I saw my whole Dutch work history, including what public and private pensions I am due. The government knew exactly how long I had worked there...

Te get Swiss citizenship I needed to prove that I had lived in the country for 12 years, and all that took was just an email of each of the municipalities I had lived in. I find it odd that Canada would not know who lives within its borders...

Here when you get a new passport you can keep the old one. They just punch a couple of holes in it to invalidate it,

After sitting in drawers for years and having never looked at the old stamps, I finally shredded my old ones going back to the 70s. I gave my son his first passport for nostalgia because it was issued when he was a month old and was issued at the consulate in Sevilla.

Wengen:
Canada does know who lives here.

Because I couldn’t prove every bit of my working life, my passport stamps and visas for working in other countries helped to decide the amount I receive of certain pensions , based on how long I DiD work in Canada.
I hadn’t kept employment contracts for two countries……not even sure I had a contract for one of them 48 years ago.
Service Canada wanted proof of where I had worked and lived outside Canada and this seemed to satisfy them.

Proof and memories. I’ve had a valid passport most of the time since I was 17. I have expired official and unofficial passports in a drawer somewhere in the house. Shred and burn your expired documents if it worries you. Personally if you’re a traveler it’s sort of sad to consider getting rid of that link.

an expired US Passport is always proof of citizenship, if you're concerned about that.

I keep the old ones for the photos so I can document the decline in my appearance over time.

I keep all the old expired passports, the oldest since 1971, serves as primary source material for the Europe trips since 1971. Then the life of the US passport was not 10 years but rather five.

When I received the the latest old passport this June, it having expired in April 2025, I was pleasantly surprised that it had not been perforated. The new one of 2025 almost looks like the old one from April 2015.

Such an easy way to keep memories, take up very little space. I think even Marie Kondo would give you a pass on a passport.

I keep my old passports in case I invent time travel.