How-to

How to Use Tags in Apple Reminders (Complete System)

By Vyshakh Nair, Founder, Ultra Reminders · Updated May 5, 2026 · 7 min read
Part of the master guide: Apple Reminders for Power Users: The Complete System

Apple Reminders tags use hashtag syntax inside any task to label context, energy, project, or priority and feed Smart Lists with cross-list filters.

You type #work, #waiting, #5min anywhere in a task title and Reminders attaches that tag to the task. The tag is now searchable, filterable, and groupable. Pair it with a Smart List that says "all tasks tagged #5min from any list" and you have a powerful cross-cutting view that the regular list system can't give you.

This guide is the result of running a tag system for 18 months across three iCloud accounts and watching what survives. Spoiler: most people start with 30 tags, end up with 8, and the 8 that survive are the ones tied to a daily ritual.

This is part of Apple Reminders for Power Users: The Complete System.

What you'll achieve

By the end of this guide you'll have a 12-tag starter library, three Smart Lists that surface tasks by tag instead of by list, and a one-page cheatsheet for when to use each tag. Your tags will feel like a system, not a graveyard.

What you'll need

  • iOS 15 or later, or macOS Monterey or later (tags shipped in iOS 15, October 2021)
  • iCloud signed in and Reminders enabled
  • About 20 minutes for setup
  • A willingness to delete the tags that don't survive week three

Step 1: Understand the four tag categories that work

There are roughly four useful tag categories. Mix them carefully because too many is worse than too few.

The four:

  1. Context (where or how): #home, #office, #errands, #phone, #email
  2. Energy (what kind of brain you need): #5min, #deep, #shallow, #brain-dead
  3. Project (which initiative): #q4-launch, #wedding, #move
  4. Status (what state): #waiting, #blocked, #someday

Pick one or two from each category. Don't pick all of them. A 12-tag system is plenty. A 30-tag system is theater.

Honestly, the energy tags are the most underused and the most life-changing. When you're tired at 4pm, opening a smart list of #5min and #brain-dead tasks is a small miracle. You knock out 6 things while a coffee brews. Your dopamine thanks you.

Step 2: Type tags directly into your tasks

To add a tag, just type # followed by the tag name in any reminder title. Reminders auto-completes existing tags as you type and creates new ones if you finish typing without picking a suggestion.

Example: "Email Sundeep about Q4 numbers #email #5min"

Three things to know:

  • The tag stays in the title (yes, this is annoying; Apple has not fixed this).
  • Tag names cannot contain spaces. Use hyphens: #q4-launch, not #q4 launch.
  • Tags are case-insensitive (#Work and #work are the same tag).

A small workflow tip. If you keep your tag list to 12, you'll memorize them in a week and you won't need autocomplete. If you let it grow to 50, you'll be hunting through suggestions for 3 seconds every capture and you'll quietly stop tagging.

Step 3: Build the three foundational Smart Lists

Smart Lists are the payoff. Without them, tags are just colored noise. With them, tags become a control panel.

Build these three to start:

Smart List 1: "Today by energy"

  • Filter: Tag is #5min OR #brain-dead, AND scheduled for today
  • Use case: low-energy afternoon. Knock out the easy ones.

Smart List 2: "Waiting on others"

  • Filter: Tag is #waiting
  • Use case: weekly review. Anyone you're blocked on, you chase.

Smart List 3: "Ready, no excuses"

  • Filter: Tag is #5min, no due date
  • Use case: standing in line, in the elevator, before a meeting starts. Three minutes of free time turns into three completed tasks.

For more on Smart Lists, see How to Set Up Smart Lists in Apple Reminders and 15 Smart List Recipes for Apple Reminders.

Step 4: Tag at capture time, not later

The whole system collapses if you try to tag retroactively. Tag at capture or never.

The discipline. When you create a task, the moment of capture, ask one question: "what tag does this need?" If the answer is "I don't know", default to one tag based on the obvious context (#email if it's an email reply, #phone if it's a call, #5min if it's quick). If you can't pick in 2 seconds, leave it untagged. Don't sit there agonizing.

Why this matters. The cost of capture has to stay near zero or you'll stop capturing. A 4-second tagging pause kills the habit faster than a missed reminder. Better to have 60% of tasks tagged consistently than 100% tagged painstakingly.

Step 5: Set up the 12-tag starter library

Here's the tag set we recommend after testing 40 different combinations across roles (founder, freelancer, parent, student, manager).

Copy this list verbatim and adjust over the next 4 weeks based on what you actually use.

Context (5):

  • #email
  • #phone
  • #errands
  • #office
  • #home

Energy (3):

  • #5min
  • #deep
  • #brain-dead

Status (3):

  • #waiting
  • #blocked
  • #someday

Special (1):

  • #review

That's 12. Don't add a 13th in week one. Live with these. Watch which ones you actually use. After 4 weeks, drop the ones you've used fewer than 3 times. Add new ones only when you have the same task type 3+ times in a row that doesn't fit.

Step 6: Color-code your most-used tags via list grouping

Tags themselves don't have colors. But you can pin Smart Lists to your sidebar and give the LIST a color and icon. Same effect.

For your top 5 Smart Lists, give each a distinct color:

  • "Today by energy" → orange
  • "Waiting on others" → red
  • "Ready, no excuses" → green
  • "Review" → blue
  • "This week" → purple

The visual hierarchy on your sidebar tells your brain what to do. Red = chase. Green = quick wins. Blue = think. Your eyes learn the system in 3 days.

Step 7: Run a 5-minute weekly tag review

Every Sunday, open the "review" Smart List (filter on #review). Look at every tag in your sidebar. Ask: did I use this last week?

If yes, keep it. If no, ask: do I want to use it next week? If you can't articulate why, delete the tag.

Reminders lets you delete a tag (and remove it from every task that has it) by long-pressing the tag in the sidebar tags section. Be ruthless. Tag debt is real. A tag you never use makes you scroll past it every time you capture.

"I had 47 tags in Reminders. Looked smart. Used 6. Deleted 41. Capture got 3x faster."
paraphrased from r/macapps, April 2026

Common pitfalls

  • Too many tags too fast. Starting with 30 tags is a guaranteed graveyard. Start with 12. Add slowly.
  • Tagging retroactively. If the tag isn't applied at capture, it usually never gets applied. Stop trying to clean up later.
  • Tags as a substitute for lists. Tags are cross-cutting. Lists are containment. Don't tag everything #personal if you have a Personal list. Redundant.
  • Tags with spaces. Won't work. Use hyphens. Tag names lowercase by convention to reduce cognitive load.
  • Forgetting Smart Lists. Tags without Smart Lists are just colored words. You need both halves.

Verification

You know the system is working when:

  1. You open Reminders and head to a Smart List, not the inbox.
  2. Capture takes under 3 seconds including tag.
  3. The Sunday review surfaces 5 to 10 #waiting items you'd forgotten.
  4. The "Ready, no excuses" list has at least 8 items at any moment, and you knock 3 off during dead time without thinking.

If your sidebar is full of pinned Smart Lists and your inbox is mostly empty, the system is working. If your inbox has 200 untagged tasks and your Smart Lists are empty, restart from Step 4.

For other power-user moves, see How to Build a Kanban Board Inside Apple Reminders and 11 Hidden Apple Reminders Features You're Not Using.

"Smart Lists + 12 tags = the closest thing to GTD that ships free with my Mac."
paraphrased from r/getdisciplined, January 2026

FAQ

Q: Why do tags stay visible in the title text?

A: This is a known Apple Reminders behavior. The hashtag is a parser instruction, but unlike Things or Todoist, Reminders does not strip the tag text from the title after parsing. The tag attaches correctly to the task; the visible text just doesn't get cleaned up. Apple has not fixed this as of macOS 26.1, May 2026.

Q: Can I rename a tag everywhere it's used?

A: Yes. In the Reminders sidebar, find the Tags section, long-press (or right-click) the tag, and choose Rename. The change propagates to every task that has the tag.

Q: How many tags can I have in Apple Reminders?

A: There's no hard documented limit. Practically, the sidebar gets unusable past 30 to 40 tags. Most working systems land between 8 and 15 tags total.

Q: Do tags sync across all devices?

A: Yes, via iCloud. Tags sync the same way reminder content does. Make sure iCloud Reminders is enabled in Settings on every device.

Q: How does Ultra Reminders handle tags?

A: Ultra Reminders reads the same Apple Reminders tags via EventKit, so your tag system transfers automatically. It adds AI clustering on top, so tagging becomes optional rather than mandatory; the on-device LLM groups untagged captures by inferred context. Free 14-day trial.

Ultra Reminders solves tags that survive past week three because they have a system. Free 14-day trial at ultrareminders.com.